Black Knapweed

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Plant Bio

Common Name:Black Knapweed
Family:Asteraceae
Genus:Centaurea
Species:nigra
Classification/Rank:Extremely Invasive
Method of Transportation:
Habitat/Range:

Description

• perennial herb that grows 0.1-0.8m tall • stems are erect, branched, and rough hairy • leaves are toothed, or shallowly lobed to entire, and are hairy above and below; lower leaves are long stalked and become unstalked with increasing plant height • flowers are disk shaped, purple, and found solitarily at the end of upper branches

News

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posted: March 6, 2018
RFP’s for invasive plant management for 2018

The Northwest Invasive Plant Council (NWIPC) is inviting proposals from persons or companies specializing in invasive plant management to...

posted: January 31, 2018
Feb 3 - Stand Up for BC Parks

This Saturday, Feb 3, 2018 - join people around the province, and Stand Up For BC Parks!